Specifications:Input: AC220-240V 50-60HzOutput: DC15V 400mAPower: 1W (10LED， 14LED)， 1.5W (18LED)Mode: Slow flash color changingCable Length: Approx. 2m/ 78.74"17.6"/45cm lamp is suitable for 50-60cm length of aquarium13.7"/35cm lamp is suitable for 40-50cm length of aquarium9.8"/25cm lamp is suitable for 30-40cm length of aquariumThis is a underwater air bubble color changing LED lights for decorate your tankLow power & super bright LED lightsHigher luminosity and longer lifeLow energy consumption & environmental friendlyEntirely sealed design for underwater useEasy to install with 2 strong suckerBubble disperses equally and supply is excellentIt makes your tank with more romantic atmosphere in the evening and also promotes the growth of animal and plant